Sheet-packing



m0 Model.)-

' T. MGGOWAN.

I SHEET PACKING.

N0. 49Z',420;. I I V Pate nted Feb. 28, 1893.

n q l I V y s ww trteuflfeo". L'LWRI'OD 03. w WWW UNITED; STATES THOMSON MCGOWAN, OF CLEVELAND, OHIO.

SHEET-PACKING.

SPECIFICATION forming part of Letters Patent No. 492,420, dated February 28, 1893. I

Application filed May 9,- 1892. Serial No. 432,369. (No specimens.)

To all whom it may concern.-

Be it known that I, THOMSON MOGOWAN, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Sheet-Packing; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

My invention relates to sheet-packing, impervious to such substances as, for instance, petroleum, and sulphuric-acid, and being well adapted, therefore, for use in the treatment of, or in connection with, such substances; and my improved packing consists in a disk or sheet of paper, cloth, or equivalent absorbent material, saturated with an easy-flowing liquid compound, obtained by saturating glycchemically unite with the glycerine.

In the accompanying drawings, Figure 1 is a view of my improved packing, and Fig. 2 is a sectiop of same on line 2-2 of Fig. 1.

To make this liquid substance with which the sheet of absorbent material is saturated,

take such quantities of basic oxide as will saturate the glycerine used. The basic oxide, as already indicated, must be such as will chemically unite with the glycerine, as for instance, oxides of lead, zinc, or manganese, and to make the packing, the sheet of absorbent material is saturated with the aforesaid liquid substance.

Heretofore, there has been great difficulty in packing the joints, for instance, of steampumps used for pumping petroleum oil, and the difficulty was greatly increased where a high pressure was employed and where the same pump was used successively for pumping oil and water. WVith the packing hereinbefore described, there is no difficulty in making tight joints that will withstand alike the action of oil and water and with any pressure that is likely to be employed in pumping.

I am aware that a composition consisting of glycerine and litharge mixed to a mass has been employed for a similar purpose and that a packing for stuffing boxes consisting of rope tion, in the presence of two witnesses, this 11th day of April, 1892.-

THOMSON MCGOWAN.

Witnesses:

G. H. DORER, WARD HOOVER. 

